Earth Science Quiz

The earth is able to sustain life for millions of years because of the presence of this shield that protects the life forms from harmful solar radiation.

• Aurora

• Atmosphere

• Magnetic field

• North and south pole

Which of the following statements is true about the earth’s subsystem?

• Most of the liquid water found in earth’s surface is potable

• If the earth had been bigger than its current size, it would have less gravity

• It takes 500 seconds from light from the sun to reach the surface of the earth

• Earth is the only planet in the solar system having water in three phases: solid, liquid and gas.

It encompasses all life forms on earth

• Biosphere

• Geosphere

• Atmosphere

• Hydrosphere

The largest among the four subsystems

• Biosphere

• Geosphere

• Atmosphere

• Hydrosphere

The solid surface of the Earth

• Lithosphere

• Stratosphere

• troposphere

• Mesosphere

It is the solid sphere of the earth. This is where different geologic processes such as volcanic activity, formation of mountains, volcanoes and other geologic

• Biosphere

• Geosphere

• Atmosphere

• Hydrosphere

Oceans occupy what percent of earth’s water?

• 65%

• 70%

• 80%

• 98%

The frozen part of the hydrosphere is called _____.

• Frozen

• Glaciers

• Icebergs

• Cryosphere

How many components of gaseous layer that Earth surface have?

• 78% nitrogen and 21% oxygen

• 76% nitrogen and 23% oxygen

• 74% nitrogen and 22% oxygen

• 72% nitrogen and 27% oxygen

It is considered to be one of the inner planets next to Venus. Its distance from the sun is about 93 million miles and it takes about 500 seconds for sunlight

• Mercury

• Earth

• Mars

• Jupiter